#define _CRT_SECURE_NO_WARNINGS 1

#include<stdio.h>
#include<assert.h>
char* my_strcpy(char* des, const char* source)
{
	assert(des && source);
	char* start = des;
	while (*des++ = *source++)
	{
		;
	}
	return start;
}

int main()
{
	char arr1[] = "********";
	char arr2[] = "hello";
	printf("%s", my_strcpy(arr1, arr2));
	return 0;
}
